Haters will hate, but I run a 3-point on my MP5K, find it works well with the short distance between the sling points. I bought whatever generic tactical-outdoor-hunting-survival-paintball-wargames sling was cheapest on eBay in 2019. Just one criteria:
That's exactly what I've got @Cr0-Magnon. What I should have said was that my sling's too long to comfortably switch to my sidearm and I can't get it short enough using the adjusters.
View attachment 109230